Calculate the net price factor and single equivalent discount. For convenience, round your answers to five decimal places when necessary. Trade
Discount
Rate
Net Price
Factor
Single
Equivalent
Discount
20/18/15

Yes i also think it is b

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.